Loom harness mechanism



Patented Aug. 14, 1928. it 1 p 1,680,501

UNITED STATES PATENT OFFICE.

' I IICHEEL CONINGSWOOD, F CLIFTON, NEW JERSEY. l

Loom nammss MECHANISM.

Application filed November 26, 1926. Serial No. 150,806.

My invention relates to improvements in one form in whichmy invention may be loom-harness mechanism. embodied but it is understood that the draw The principal object of my invention is ings are for illustration only and not to to provide a simple and convenient means limit the invention and that the form shown 6 for operating loom-harness for plain or may be modified and changed without de- 55 fancy fabrics. V v parting from my invention.

In the art of textile weaving, it is deslr- In the drawings able to so operate the loom-harness as to Figure 1 is aview ofthe upper arch porlift the frames in irregular succession, the tion of a loom frame showing one of the speed of travel of the respective harness operating levers or jacks, the loom-harness 60 frames not being uniform each with the and connecting medium with my improved other but in the course of their travel the invention associated therewith. speed of some will be greater than others. Figure 2 is a detail of the same, but show It being desirable that the speed be varied ing two jacks and frames, p

to meet the requirements of the art and the Figure 3 is a detail showing an arrange 65 work to be performed, and that all of the ment of the connecting strips and pulleys, harness frames. be brought to a uniform Figure f is a view of one of the connectplane at the terminus of travel. lng strips and its cam member, and

I am aware that various mechanism has Figure 5 is a section on the line 55 in been heretofore devised to regulate and con-' Fi ure 4.

' trol the operation of the loom-harness and gimilar characters of reference refer to it is an object ofmy invention to simplify similar parts throughout the several views. and improve the old devices and mechanism In the drawings I have shown on the of the character described. arch 1 of a textile loom a shaft carrier 2 in.

In the art, the loom-harness is suspended which is mounted a shaft 4, provided with from the arch of the loom by cables'or like a plurality of spaced idler pulleys 5, 6, 7, 8 medium which are carried over guide pulleys and 9.

on the loom arch or frame and are con- At oneside of the loom adjacent the arch nected with jacks or hell crank levers ar- 1,211'8 provided operating levers or jacks 10,

3o ranged adjacent the loom arch. 11 of the usual type.

These jacks are caused to swing back- The harness-frames 12, 13 are suspended ward and forward thereby drawing up and from cables 14, 15 respectively which are lowering the loom-harness frames, which carried'over guide pulleys 16, 17 positioned may be provided with springs adapted to on the arch of the loom.

normally draw down the frames, all of My improved device, includes a narrow 5 which is well understood and is old in the plate or strip of steel or the like 18 provided e on its face or upper surface with a cam An object of my invention is to provide block 19" preferably having a lug 20 means for regulating the speedof travel of adapted to be adj ustably positioned in a slot 40 the loom-harness and to vary and adjust 21, in the plate 18 and secured thereon by set no the relative speed and operation thereof to screws 22. the requirements of the art. The cables 1.4, 15 by which the harness- A further object of my invitation is o frame 12, 13 are respectively supported, are i provide in a loom-harness mechani m, a connected to one of the ends of the strips 45 simple and convenient substitute for cam 18 by means of'a perforation 24 therein wheels and other intricate mechanism. and the strip 18 is connected at its other end A further object of my invention is to to a jack lO by a perforation or slot 25, provide a loom-harness mechanism of a whereby the strip 18 is incorporated in and minimum number of parts. forms a part of the medium connecting the 50 The accompanying drawings illustrate harness frame and its jack. 1

The strip 18 is positioned below and passes underneath a loose idler or roller 5 on the shaft 4.

In the operation of the loom, the jack is caused to rock as above explained and thus draws the cam block 19 on the strip 18 backward and forward under the idler 5 with which the cam block 19 contacts.

As the block 19 passes under and in contact with the pulley or idler 5,. the strip 18 will be depressed, thus shortening the distance between the harness-frame 12 and the jack 10, whereby the movement of the harness-frame will be accelerated in its ascent and retarded in its descent during the period when the cam block is engaged by its idler, and when disengaged, the travel will be restored to normal.v

The size and shape of the cam blocks 19 may be varied and modified as desiredand as the work to be performed may require, thereby causing corresponding variations in the movement of the harness-frames controlled thereby.

I have shown in section in Figure 3, a plurality of cam blocks 19, 19 19 19 19* of progressively graduated size, each engaged by its idler 5, 6, 7, 8 and 9 respectively, with neutral bands or strips 26, 26 26 26 26 between these spaced idlers but this arrangement may be varied as desired and as conditions may require.

Having thus described my invention, what I claim is:

1. In a device of the character described the combination of a harness-frame, a jack, a connecting medium operatively connecting the harness frame and the jack, a cam block on the connecting medium and a pulley adapted to engage the cam block whereby in the longitudinal movement of the connecting medium the pulley will be engaged by the cam block producing a transverse movement of said camp block and connecting medium so that the harness-frame is moved farther than it would be with straight line motion of the connecting medium.

2. In a loom, the combination of a jack and a harness frame, a connector operatively connecting the jack and the harness frame, a cam block on the connector and a member adapted to contact with the cam block whereby in the longitudinal movement of the connector a transverse movement of said connector will also be produced so that the barness frame is moved farther than it would be with straight line motion of the connector.

3. In a loom, the combination of a jack and a harness frame, a connector operatively connecting the jack and the harness frame, a cam block adjustably positioned on the connector and a member adapted to contact with the cam block whereby a transverse movement of the connector is produced during its longitudinal travel so that the harness frame is moved farther than it would be with straight line motion of the connector.

4-. In a loom, the combination of a jack and a harness frame, a slotted connector therebetween, a cam block adjustably positioned on the connector and a member adapted to contact with the cam block whereby in the longitudinal movement of the connectoiuthe last named member will be engaged by the cam block producing a transverse movcment of said cam block and connector so that the harness frame is moved farther than it would be with straight line motion of the connector.

5. In a loom, the combination of a jack, a harness frame adaptedto be driven thereby, a connector between the jack and the harness frame and including a strip and a cam block thereon, and a roller adapted to contact with the cam block whereby in the longitudinal movement of the connector the roller will be engaged by the cam block producing a transverse movement of said cam block and connector so that the harness frame is moved farther than it would be with straight line motion of the connector.

6. In a loom, the combination of a loom frame and a harness frame, a jack on the loom frame, a pulley intermediate the jack and the harness frame, a connector between the ack and the harness frame and a cam on,

the connector adapted to contact with the pulley whereby in the longitudinal movement of the connector, there will be produced a transverse movement of the connector and cam block so that the harness frame is moved farther than it would be in the straight line movement of the connector.

7. In a loom, the combination of a shaft, a plurality of spaced idlers on the shaft, a plurality of jacks, a plurality of loom harness frames adapted to be operated by the jacks, connectors between the jacks and the frames, and cam blocks on the connectors and adapted to contact with the idlers whereby in the longitudinal movement of the connectors, there will be produced a transverse movement of the connectors and cam blocks thereon so that the harness frame is moved farther than it would be in the straight line movement of the connectors.

8. In a loom, the combination of a harness and a jack, a connector therebetween, a cam on the connector, and a fixed roller adapted to contact with the cam so that in thelongitudinal movement of the connector the fixed roller will be engaged by the cam producing a transverse movement of said cam and connector so that the harness is moved farther than it would be with straight line motion of the connector.

9. In a device of the character described, the combination of a loom, a loom arch thereon, a shaft carried by said arch, an idler pulley on said shaft, a jack, a harness frame, a cable connectin said jack and said harness frame, guide pulleys for said cable, a flat strip of material on said cable inter mediate said jack and said harness frame, a 5 cam block on said flat strip of material, a roller adapted to contact with said cam block in the longitudinal movement of the said strip whereby the harness frame is 7 moved farther than 'it would be in the straight line movement of the said strip.

In testimony whereof, MICHAEL CoNINeswoon has signed his name to this specification, this 10th day of November, 1926.

' MICHAEL CONINGSWOOD. 

